installing pickup covers.

[Transcend]

Hey guys i have a neck pickup which im incredibly fond of and do not wish to change but it is uncovered.

i have found this

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130325623478&ru=http%3A%2F%2Fshop.ebay.co.uk%3A80%2F%3F_from%3DR40%26_trksid%3Dm570%26_nkw%3D130325623478%26_fvi%3D1&_rdc=1

and was wondering what the best way to install it is.

Would i have to pot the pickup? or would it just be a case of slipping it on?

Thanks
Tony