This Tenebraex ocular flip cover is designed for Swarovski X5, Z6, and Z6i riflescopes. It can conveniently flip out of the way when you are ready to shoot and will protect your lens from damage. Fits the Following Swarovski Scopes (Ocular Lens):X5 3.5-18x50 PX5 5-25x56 PZ6 1.7-10x42Z6 1-6x24Z6 1-6x24 EEZ6 2.5-15x44 PZ6 2.5-15x56 PZ6 2-12x50Z6 3-18x50 PZ6 5-30x50 PZ6i 1-6x24 EE Tenebraex Clear Ocular Flip Cover with Adapter Ring Swarovski UAC019-CCR