Soft water resistant nylon cap with sewn-in elastic band that makes a tight seal to keep out dirt and moisture. A must for all telescopes .

ATTENTION: DOB OWNERS

THE CAPS LISTED BELOW ARE FOR THE DOBS OUTTER DIAMETER AND ARE NOT THE MIRROR SIZE.

TRUSS TYPES USUALLY RUN LARGER .
IF YOU ARE NOT SURE PLEASE MEASURE YOUR O.D. AND CONTACT US BY EMAIL BEFORE ORDERING

THANKS!