When get out the iPhone 4 slim case out and you’re surely sorts of surprise that it declare the type of protection it does, top slim! Coming around 14mm with few bulky added to iPhone 4. On the top there is a round plug which with a o-ring which creats the seal to prevent the outside element get into, http://www.thewantbuy.com/Wholesale-cas ... c1330.html and all the functions ports have access to, no negative effect endow to the iPhone 4 metal case. http://www.thewantbuy.com/Wholesale-cas ... c1327.html All the edges are of a little bit rubber snug feel although it’s not sticky, yet if you used a iPhone 4 bumper before you know that when you lay down iPhone on a surface which it’s resistant to sliding. The iPhone 4 metal case is not. thewantbuy.com/