... 4)colors: as per buyers' requirment *Name:door closers, door fittings1)Features: Perfect combination between the drive piston ... ,black. *The size of the KD071: ................The door open and close speed can adjustable ,and with or ... without brake function,the door can stop in a certain position,and open ... t hesitate to contact me!Thx! (^-^) Door closer ,door closer adjustment,(KD 071 )