Single wheel abdominal muscle item NO:RF-036 G.W:0.65KG foam handle diameter:2.5*10cm QTY:20PCS/CTN delievery time:10-15days box size:24*15.5*16.8cm packing:color box material:the wheel is PVC plastic we are specializes in producing home gym/fitness equipment such as rubber dumbbells,plating dumbbell,coated dumbbell,benches,exercise bikes,treadmills,skip rope,tent and other exercise accessories. we can supplied the products is competitive,high quality,good after-sales service, if you contact us,we will give you best service!!!!!