Please have look to all the photos in the product page for your reference.

and the compatibility list below

Features:
- Portable and detachable, you can take photo with your device at any time
- High Clarity: Made of high-class glass
- Strong: Made of top-grade Aluminuim
- Applicable to any devices

How to attach the Lens to your device?
- Mangetic
- Magnetic thru a ring with self-adhesive tape

How to use?
- if you device is Magnetic, then it will be very simple, just put the lens directly ahead of your built-in lens, then you will get what you want.
- Otherwise, you can use self-adhesive ring (included) to stick a magnetic ring in front of your built-in lens (to make it magnetizable) then put the lens on the add-on ring
- You can change among our Wide Angle Lens, Fish Eye Lens and Marco Lens for your specific purpose

Specifications:
- Magnification: Telephoto 2.0X (just aas a @X zoom lens)
- Lens Construction: 2 elements in 2 groups
- Dimensions (Main body): 20.6mm (diameter) x 19.9mm (length)
- Dimensions (magnetic ring): 13.06 (outer), 9.38 (innner)
- Weight: 6.6g

Applications:
- Photo-taking

Compatible with:  (Please have a reference to the dimension of the Lens and Rings)
- iPhone 1st Gen / iPhone 3G (will have a black ring around)
- iPod Nano 5th  (will have a black ring around)
- HTC Dream / T-Mobile G1
- NDS DS-i
- Notebook / Netbook (eg. Mac / Macbook / eee-pc / laptop)
- Mobilephone / PDA / Smartphone...
- Degital Camera (for example: kodak Zi8, kodak Zi6)

Package Contents:
- Magnetic / Detachable Telephoto (2X) Lens x 1
- Lens Cover (plastic) x 1
- Detachable Magnetic Ring x 2
- Keychain strap x 1

Packaging:
- Blister

Note:
- You should determine if it will fit for your devices
- For Photos taken with Nokia 6120 and showing in this product page, the Lens was held by hand, not attach by magnet or thru the self-adhesive ring.