Review on Bicycle Handlebar Extender by Comistack - 11.8 Inches / 30 cm, Includes Kid Rubber Bicycle Grips for MTB, Speedometer/GPS/Phone Mount Holder Attachment by Bob Larson

The base product is acceptable IF you can safely assemble it. The included pads are too slippery to allow him to grip the handlebars tight enough that it doesn't spin. In particular, use it as an alternative steering wheel. I had to custom make some brackets to securely attach it to my bike and also find longer bolts to connect everything. I love the end result, except I wish the extensions were longer so there would be more clearance between my riser bars.