This shell transforms Z3 in my tank! More fear during sports outings! The weight (367g with such!) Is both a disability (tighten the laces of his boardshort when he is in the pocket) and a plus (while wearing gloves). Corning Gorilla glass is exceptional clarity and conductivity, the alloy front and back is finished and appears robust (weight!), The silicone bumper filled his same role it deserves a better trim. Comes with 2 keys for disassembly, replacement screws, a strap and a cloth. Frankly for the price: a killer and feel like a new phone you will not be afraid to take where you do not take him your GoPro ...