Garrucha Door and Window Roller Sliding Window Roller Iron Housing Nylon Pulley Wheel Product Attributes Attribute Value Material Steel Load capacity 20kg Wheel Color Any color Style Modern design Type Sliding Door And Window Rollers Function Quiet operation Product Description Garrucha Door and Window Roller Sliding Window Roller Iron Housing Nylon Pulley Wheel Product Advantage Corrosion Resistance: Often coated or treated to resist rust, especially for outdoor use. Top