Worker Cheetah Rival Rounds are an affordable refill option for Nerf Rival HIR and rival-compatible ammo made for the original Worker Cheetah rival blaster. Featuring a 22.7mm diameter and ultra-soft foam, these rounds are the best for compatibility and durability with both springers and flywheelers These rival rounds are also used in our standard 20-shot average chronograph procedure for all rival blasters that enter the shop for testing. FEATURES: • Rival-compatible ammo• The best rival round in compatibility, durability, and price• Ultra squishy EVA foam won't stall or burn out flywheels• Designed for the original Worker Cheetah• Compatible with all rival and rival-compatible blasters including OOD's own Juno, Proton Pack, and Jupiter INCLUDES:• 1 100-pack Rival rounds SPECS: • Material: EVA Foam• Dimensions: 22.7mm• Weight:• SKU: W0701 LINKS:• Worker Cheetah Rival Blaster• Short Dart Magazines • Wide compatibility - Nerf Rival Blasters + Worker Cheetah• Compatible with Proton Pack and Jupiter