Telescope Guide Ring Riser Blocks Spacers Sturdy Simple Assembly Accessories Black 50mm

[feature]built in grooves for mounting on the dovetail rails and aluminum material ensures light weight and enhanced durability [function]the risers lift your entire telescope and increase the clearance above the dovetail bar,balancing the entire system on the mount [metal material]metal riser block for telescope refractor ring is made of aluminum alloy,lightweight and sturdy structure [m6 and 1/4“ screws]provide m6 and 1/4“ long and short screws for telescopes rings and dovetail plate from different brands [m6 and 1/4“ holes]the holes can accomodate m6 and 1/4" screws