Technic Pin with Friction Ridges Lengthwise and Towball 662837 offer structural support and detail possibilities, enhancing both stability and aesthetics in MOCs. Durable material supports creative reuse and adaptation. Maintains consistent color for a cohesive design aesthetic. 50pieces per pack to significantly expand your collection and support a wide range of projects. Block Size : Small building block?Compatible with Lego? Compare Lego Model : Technic Pin with Friction Ridges Lengthwise and Towball Compare Lego Model Number : 6628 4184169 6254216 manufacturer: Gobricks