Acoustic Guitar Neck Strap with 2 Black Suction Cups This strap can be used with acoustic guitars, mandolin, banjo or ukelele with no strap button. One of a kind. Patented design. Total control and flexibility. You can connect the strap to any location on your instrument without drilling holes It is designed for wood surfaces to avoid any alteration to the instrument. Capacity:2 Rubber Pads can hold up to 15 pounds