Based on this product's specifications, here are some alternatives and similar models
Timing Belt GT2 6mm Width 10cm Length, MILWAUKEE DHA0600
Summary description:
GT2 timing belt by MILWAUKEE, 6 mm wide and 10 cm long (model DHA0600). Designed for synchronous drive applications requiring precise tooth engagement and smooth motion transfer. Suitable for small linear actuators, 3D printers, CNC hobby machines and timing pulleys using GT2 tooth profile. Provides accurate positioning and reduced backlash in compact drive systems.