Specifications: V-shaped stainless steel frame; Size: 1.3 inches (33 mm); Frame thickness: 0.06 inches (1.5 mm); SUS304; Core rod: 0.2 inches (5 mm); SUS304; Car: Brass #626ZZ bearing (inner diameter 0.2 inches (6 mm) x Outer diameter 0.2 inches (19 mm) Weight: 2 mm); Load capacity (50 lbs (50 kg); This product cannot be returned upon ordered. Please acknowledge