I give 2 starts in case you REALLY need to block your strap, which this product does. Problem is that it blocks it so tight, that the strap doesn't spin freely around the strap button, which with regular movement (at least for me) starts to unscrew the button, causing the button to eventually fall off. Mine did after perhaps 10-15 uses of the guitar. Not good. I screw the button back and I think will be fine, but definitely removing the blocks now. I guess the experience may be different depending if your buttons are screwed or not, or if your style is different than mine and doesn't cause the strap to spin that much around the button. But for me I think is going to be a waste of money. Quality not great either as the plastic is easy to wear off while removing the blocks