The Digislider Belt Drive Add-On (with IGUS Rail and Carriage) uses a 100cm long IGUS solid 16-60 rail with carriage with tripod head mount. It has 5 x 3/8 inch threaded holes for mounting tripods and 12 x 1/4 inch threaded holes for numerous attachments like tripod plates. It enables a smooth and accurate movement via a hand crank (It can also be moved up and down the carriage by hand). It does exclude the Digislider Motors (sold separately) which easily slip on with minimal effort enabling a fully motorised dolly slider in seconds with the Digislider Controller (sold separately).
The Digislider is well-suited for small DSLRs to larger cameras with lenses, microphones, and other gear (about 10 kgs of weight in total for easy movement).