ROTO GRIP 2-BALL ROLLER BLACKOUTMaterial 600 denier polyvinyl fabricFeaturesSuperior Wide Base with Large Molded Ball HoldersFlush Retractable Push Button Handle SystemWide Super Soft Clear-Gum™ WheelsForged Steel AxleShoe Compartment Accepts up to Men's Size 15Foam padded ball system5-Year Limited WarrantyDimensions: W:12" x D:17" x L:23"