Introduce: Alloy Car Tow Hook Trailer Chain Kits, include Climbing Trailer Tow Hook Buckle, RC U Shaped Rescue Tow Hook Trailer Chain Assemble Parts. Material: Alloy. Size: 1 set include: about 0.55 inch(14mm) wide, 0.55 inch(14mm) long, 0.87 inch(22mm) high, 1. base with scale: 0.55×0.55×0.35 inch(14x14x9mm), hole: 0.06 inch(1.5mm) and 0.12 inch(3mm), 2pc; 2. U-shaped rings: 0.73×0.47×0.20 inch(18.5x12x5mm), 0.20 inch(5mm) inner diameter, hole: 0.10 inch(2.5mm), 2pcs; 3. screws: 0.16 inch(4mm) in diameter, 0.63 inch(16mm) long, hole: 0.08 inch(2mm), 2pcs; 5. screws with hole: 0.16×0.14×0.06 inch(4×3.5×1.5mm), hole: 0.04 inch(1mm), 8pcs; 4. screws: 0.35×0.12 inch(9x3mm), 8pcs. 1 set include: 1 with scale: 0.51×0.51×0.35 inch(13x13x9mm), hole: 0.06 inch(1.5mm) and 0.10 inch(2.5mm), 2pcs, 2.U-shaped rings: 0.75×0.45×0.20 inch(19×11.5x5mm), hole: 0.12 inch(3mm), 0.20 inch(5mm) inner diameter, 2pcs, 3w: 0.59×0.16 inch(15x4mm), hole: 0.04 inch(1mm), 2pcs, 4w: 0.35×0.12 inch(9x3mm), 8pcs, 5ws with hole: 0.16×0.14×0.06 inch(4×3.5×1.5mm), 0.04 inch(1mm) inner diameter, 10pcs, 6 Hooks: 0.83×0.51×0.20 inch(21x13x5mm), hole: 0.06 inch(1.5mm), 2pcs, 7w: 0.33×0.14 inch(8.5×3.5mm), 2pcs, 8ining rings: 0.31 inch(8mm) in diameter, 0.04 inch(1mm) thick, 0.28 inch(7mm) inner diameter, 9. cable chain: 31.30 inch(795mm) long, link: 0.28×0.20×0.04 inch(7x5x1mm). Note: Please allow 1-3cm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!