10 For TRX4 Simulation Climbing Car Trailer Hook Flow Hook For 90046 TRX4. Simulated climbing trailer hook for original 90046 90047 TRX4 and other models. Color: Black Material: Alloy Product Size: 5.5cm x 2.5cm x 1cm/2.16 inch x 0.98 inch x 0.39 inch Package Contents: 4 x Trailer hook Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.