Fully Assembled 3-in-1 Plyometric Jump Plyo Box 20-24-30 inch by JumpUSA Comes prebuilt, screwed and glued, ready to use. No messy gluing and drilling. Save yourself the assembly headaches! Rock solid inner cleat construction rated to withstand 1 ton (2000 lb) Height Options: 20, 24, 30 - exact specs for Crossfit Games competition All edges are bevel rounded for safety. Surfaces sanded furniture quality smooth. Precision CNC Machined and Proudly Made in the USA