Designed for easy installation, these train wheels are user-friendly and compatible with a wide range of train models. Whether you're replacing old wheels or assembling new ones, their precise engineering ensures a fit, making them a nice choice for hobbyists looking to maintain or upgrade their train collections. Features -Color:Dark Grey -Material:Alloy -Size:2.60X1.30X1.30cm/1.02X0.51X0.51in -Size:1.45X1.30X1.30cm/0.57X0.51X0.51in -Seamless model integration: designed with precision to ensure a nice fit with electric train models, enhancing operational efficiency and stability -Alloy build: made from durable alloy material, these alloy train wheels resist wear and damage, ensuring performance and reliability -Diy friendly design: features an easy to install design, enabling users to effortlessly maintain and upgrade their train models with minimal effort -Quiet and smooth operation: equipped with noise reduction technology to provide a quieter and smoother train running experience for users -Multi environment use: alloy train wheels are suitable for use in homes, schools, or clubs, offering accessories for model train enthusiasts Package list: 1 x pair of train toy wheels