This general purpose Vixen-Style dovetail is 6" long and includes slotted holes for easy mounting to your own optical tube. Attach this to your scope, then use it to mount the scope assembly onto a suitable Vixen style Saddle Plate on a mount. Construction is cast aluminum. Includes two 1/4-20 by 1/2 inch socket head cap screws which are compatible with many popular models including Meade Coronado telescopes such as the SMT60 and SMT90.