Introducing a set of 4 (5 pkgs) plastic pulley wheels, perfect for DIY model toy and educational STEM projects. These pulleys feature a durable design and are made by Kelvin, a trusted brand in the industry. They are ideal for various applications and can be used in a range of industries.

Crafted in China, these pulley wheels have been designed to provide optimal performance and durability. They are easy to install and can be used in a variety of projects. Whether you are a hobbyist or a professional, these pulleys are an excellent addition to your toolkit. Get ready to take your projects to the next level with these high-quality pulley wheels from Kelvin.

Economical set of four pulleys: 10mm diameter with a 2mm hole; 20mm diameter with a 1/8 in. dia. hole; 30mm diameter with a 1/8 in. dia. hole; 40mm diameter with a 1/8 in. dia. hole.