this new and never used , but gathered a little dust sitting in my garage . it will fit most any glass lamp shade with a 10 inch bottom rim , Coleman Aladdin or otherwise . you set the shade in this holder , then with a hanging rod on your lamp you attach it to the hook on the hanger bottom . this makes it real easy to get the lamp down and lite it , once its lit you just hang it back on the hook . this device keeps your shade very safe from breakage ......