Definitions

A medicine ball is a weighted training ball used for throws, partner work, and core drills, usually with a firmer cover and limited bounce. A wall ball is a larger, softer ball built for repeated wall targets in conditioning classes, often with a textured grip cover. A slam ball is filled and covered for floor slams with little rebound—different from both.

Yunlingyu quotes medicine ball and wall ball equipment for functional training. Soft PVC kettlebells and foldable mats often ship in the same functional zone container—see PVC soft vs cast iron kettlebells and foldable gym mats wholesale—but ball SKUs need their own diameter and bounce lines on the PO.

Importers fail when one carton mark says “medicine ball” and the listing photo shows a wall-ball target drill. Lock the family name before color and logo talk.

Medicine vs wall vs slam

Copy this table into assortment meetings. Do not sell a soft wall ball as a slam ball; floors and reviews will punish the mismatch.

Sizes and ladders

Wholesale ladders usually mix kg or lb steps. Common patterns (confirm market):

• Medicine ball: 1–10 kg (or 2–20 lb) in 1–2 kg steps
• Wall ball: 4–14 kg (or 10–30 lb) with larger diameter per mass
• Slam ball: mid-to-heavy steps with dead-bounce statement

State diameter (cm/in) next to mass on the packing list. Two “6 kg” balls can look different if one is a dense slam and one is a large wall ball. Dual-market importers should run separate kg and lb SKUs rather than bilingual stickers that confuse receiving.

Color ladders help class coaches grab the right mass fast. Lock Pantone or stock color codes per kg the same way bumper buyers lock color maps.

If you sell a starter kit (for example three medicine balls plus two wall balls), give the kit its own factory SKU and an opened-carton photo with every mass labeled. Shared cartons that omit one ball create chargebacks when the retail photo shows a full ladder.

Cover and fill specs

Ask the factory for:

• Cover material (PVC, rubber, synthetic leather) and thickness
• Seam type (stitched, welded, molded)
• Fill media and whether the fill port is sealed
• Surface texture for grip when sweaty
• Printed kg / lb markings and logo placement
• Odor control after curing and packing

Soft covers that feel premium in a showroom can tear on rough outdoor walls. If your channel is garage group conditioning classes, write abrasion expectations on the PO. Soft fill that shifts creates “rattle” reviews even when mass is in band—require a shake test on PSI photos.

Bounce claims must be testable: drop height, floor type, and pass/fail rebound. “No bounce” without a method is not a QC field.

Wholesale RFQ checklist

Paste this into the RFQ. Keep free-weights and balls on separate packing lists when they share a container so QC checklists do not collide.

MOQ and packing

MOQ is often driven by cover color molds and print plates. Ask for:

• MOQ per color and per family (medicine vs wall)
• Whether mixed masses share one master carton
• Inner poly bag or net to stop cover scuffs
• Gross / net weight and carton cube for retail DC or FBA prep

Soft balls crush under iron dumbbells and bumper corners. Follow stuffing habits from export packing for heavy gym equipment: keep ball masters on top layers or on separate pallets and photograph layer order at origin.

Private-label logos on covers need artwork freezes before bulk. Late logo changes delay print calendars even when shells are ready.

For Amazon or retail DC prep, confirm whether each mass is a single ASIN or several balls sold as one pack. Packs that open into unmarked balls without retail-ready labels create prep fees—ask for a photo of the opened master before you approve bulk.

Boundaries

Medicine balls are not playground toy balls. Wall balls are not slam balls. Neither replaces bumper plates or soft kettlebells. Do not promise outdoor concrete-wall abuse on a thin synthetic cover without a written abrasion test.

Skip a full wall-ball ladder if your buyers only run partner medicine-ball classes. Skip slam balls if every gym forbids floor slam drills—then medicine and wall families may be enough. Write the class use on the RFQ so sales and QC do not argue after samples ship.

Also skip promising “outdoor concrete wall approved” unless the cover and seam pass a written abrasion check. Marketing language will not help when a soft wall ball splits on the first rough wall.

FAQ

What sizes should I stock for medicine ball wholesale?

Start with a short kg or lb ladder that matches your class programming, and list diameter next to each mass. Expand after sell-through data, not from a single competitor photo.

How is a wall ball different from a medicine ball?

Wall balls are usually larger for wall-target catches and use softer covers with more grip. Medicine balls are often denser for throws and partner work. Spec both families separately.

Should slam balls be on the same PO?

Only as a separate line with dead-bounce and abrasion fields. Mixing slam and wall covers under one SKU creates returns.

What packing detail reduces damage most?

Inner bags or nets, color/mass marks on the carton, and keeping soft ball cartons off heavy iron and bumper corners in the container.

Conclusion

A sellable medicine and wall ball order locks family, mass, diameter, cover, and bounce—not a mixed carton of soft spheres. Use the checklist above for medicine ball, wall ball, and slam ball lines, then set MOQ by color and print. Send ladder, cover type, and channel at contact-us.