Very disappointing. Self-closing systems are minimally affective, she needs a little help. Installation was a nightmare, the ball bearing retainers bent and the balls fell out requiring me to reinstall 3-4 times. It was a big struggle at first to get the slides to work properly. I have been in the joinery business for 12 years representing the drawer slide industry. I would not sell or feature this drawer slide. The only plus was that he was "black". They also included black screws (a good thing) but they were 3/4" long and EVERYONE knows drawer sides are 1/2" long so the screws are sticking out the inside of the drawer. Very disappointing!