2.0" focuser with 1.5" draw tube travel. This light weight focuser weighs only .875 lbs. We have notched out the focuser housing and custom machined the draw tube from a lightweight composite material. This focuser weighs less than 1/2 of what our Crayford focuser weighs. Due to the nature of the drawtube material, this focuser is recommended for moderate to warm climates. In colder weather the drawtube will contract. We are currently in the process of designing a lightweight drawtube for all weather climates.