Novel Design & small convenient Safety in use ItemPU stress ballModel NO.HH-S0510UsagePromotional gifts, distribute, supermarkets, enterprise or individual, major gift delivery etc as a function of advertising. Material Polyurethane (PU)Size (in inches)Normally - 2.5"( 63mm ) dia. / 2.8"( 70mm ) dia. Fabric ColorsNormally-White, Yellow, Red, Green, Black,etc. Can also be in accordance with ...