Features: brand new and high quality Wide-range Application: All new RC upper swing arm hinge bolt & nuts could for TRAX X-MAXX8S 1:5 Scale crawler, use as the replacement & modified part of your RC toy accessories. Anti-rust RC Toy Modification Part: A perfect modified part for your handmade RC toys, especially for toy RC crawler for cars, replacement of your electrical toys which offer a for fresh new service cycle with great performance. Accurate Thread Position: Stable & heavy duty bearing design and carry with 3D slim cutting, improving outline of product and grade, with accurate thread position can fix tightly, more durable & stability for better performance and for play experience. High Quality Material: Use durable metal material, anti-rust with well resistant of abrasion and erosion, more stable with good performance for RC toy parts. Easy Installation: Applicable for most RC car toys requirements and easy to install and change by your own, if you need any further instructions please do not hesitate to contact with us. Specifications: Material: Metal Product Dimension: As pictures shown Proportion: 1/5 Net Weight: approx. 26g/0.05 lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 4 x Hinge Bolt for RC Car Front A-type Swing Arm 4 x Anti-loose Nut 1 x Hexagonal Wrench 1 x for Cross Wrench