... Material: polyether TPU 0.7mm or PVC LONDON IAPPA plastic roller Specifications for zorb balls,grass walking balls,water balls,water walking ... relaxation centers,and they will bring much fun for people;(5) Competitive price. Plastic roller[product information] : Specification: 2.4 m ( ... x1.7 m (inner) x2, 3 m (length) Material: steel, plastic, PVC or TPU Material note: steel(zinc-plate, 430 stainless ...