Review title is Difficult to engage button [SEP] I bought this for my Shih Tzu, but it was much bigger than I expected.  The button to engage and disengage the tines is very difficult to push and I don't have the strength in my fingers to engage it.  I need to use a screwdriver to push the button.  The bristles are stiff, which makes brushing easy and the self cleaning is a charm!  I'm hoping the more I use it, the easier the button will become.  This would be great for larger dogs and for those with strong hands to push that button.