Amazon.com : Champion Sports Foam Plyometric Box Set with 3", 6", 12", 18", and 24" Included - Durable Jump Boxes for Training with Handles, Hook and Loop Flaps - Stackable Cross Traning
GRIND 3-in-1 Soft Plyo Box with Ultra-Density Foam for Plyometric Exercises - 16”x18"x24” – thegrindfitness.com
Foam Plyo Boxes - Prism Fitness
Training PVC Leather Foam Soft Plyo Box / Plyometric Boxes Set - China Fitness Training and Gym Equipment price | Made-in-China.com