Easy to install (can be directly swapped on most telescopes with 112mm diameter tube such as many Chinese 6″ semi-achromatic refractors).
10:1 reduction gives ultra precise control for focusing at even the highest practical magnifications.
Makes webcam/planetary imaging less frustrating.
Has two mounting holes to attach finderscope bracket on right or left hand side of the focuser.
Tensioning screws allow you to adjust the drawtube tension to suit heavy loads or provide easy movement with light accessories.