Designed to fit any camera or enlarger lens, binocular, tele-, micro-, or spotting scope lens. | The cap should fit snuggly but not so tight that it is hard to remove. | Push-on style cap

【Wake Up Light with Sunrise simulation】 This Sleep Aid digital alarm clock is designed for everyone in fact, especially for heavy sleepers and kids. Sunrise simulation light with 7 natural sounds will be on gradually from 10% brightness to 100% by 30 minutes before alarm setting time. If you think 30 minutes is too long, you can set the process to 20 minutes or 10 minutes. Wake you up by nature. | 【Dual Alarm Clock & Snooze supported】 Considering you may need to set up different alarms for your family member, we designed 2 alarms for you. Also, the function of snooze is specially designed for those who needs an extra 9 minutes to start a fresh day. You just need to press the "Snooze" button at the top of the clock, you will get more 9 mins to sleep. Up to 5 times snooze. | 【7 Color Light & 20 Brightness Adjustable】 There are 7 color changing light you can choose, include blue, indigo, purple, red, orange, yellow, green. 3 level LED time display brightness & 20 level lighting brightness adjustable. | 【FM Radio & 7 Alarm Sounds】It will be a FM Radio just when you press the "Radio" button on the upper right to switch it on. Long press the "FM Radio" button for 2 secs and it will start and automatically scan all stations with frequency 76 - 108 MHz. It's amazing that you can choose 7 alarm sounds to wake you up, such as Birdsong, Ocean Wave, Streams, Beep, Wind bells, Soft Music, Piano Music. 16 Level volume adjustable. | 【Night Light & Bedside Lamp】It is also a Bedside Lamp / Night Light / Reading Lamp. It will be a bedside lamp / night light / reading lamp just when you press the ☀ button on the upper left to switch it on. Also you can press the "+" / "-" button to adjust the brightness. Soft and warm lighting gives you good sight when you feed your baby / go to the toilet / read a book at night.