... 2. Solid, pneumatic, PU 3. good quality and extremely competitive price (1) Name: rubber wheel(2) Color: Black ,red, yellow ,green ... Material of tire: Our rubber wheel has high natural rubber rate, high elasticity, rub resistance, natural rubber tire and steel rim make sturdy ... most advanced here. 3. self-sufficiency manufacture ZINC OXIDE and SULFUR POWDER supply to tyre ormacom pleteset to use ,both ...