NEW ONE PIECE DESIGN - By combining eyepiece clip and phone clip in one, this innovative new telescope phone adapter is small, lightweight and easy to install, store and carry. The clip opening is made of silicone and will not scratch the phone or press the buttons. Applicable eyepiece and mobile phone range: the size of the telescope phone holder is only 119*67*45mm, and only weighs 100g, suitable for the outer diameter of the eyepiece is 23-50mm and the width range for the phone is 2-50mm. .6~9.0. 4 cm / 66 ~ 95 mm. Suitable for almost all smartphones and optical devices on the market. STURDY AND DURABLE: Microscope iPhone adapter, made of durable nylon + polymer fiber and metal parts. One-piece structure, multi-piece anti-loose design, 15 mm eyepiece slot depth and non-slip thread, locking the eyepiece is not easy to fall off, more stable. Universal compatibility: this spotting scope telephone adapter for optical devices, including astronomical telescopes, monoculars, binoculars, microscopes and spotting scopes. Virtually all phones on the market, including iPhone, Samsung, Google, Huawei etc. are compatible.