This Orion Eyepiece Adapter lets you use a telescope eyepiece of a different size from your telescope's focuser or star diagonal. Threaded for 2" filters. Setscrew holds the telescope eyepiece securely. Black-anodized aluminum. Use 1.25" eyepieces in a 2" focuser or diagonal. Threaded for 2" filters.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.