No special tools required!
Snap button for easy hand installation.
How to use: In the installation area, drill a hole with a punch, slip through the foot of the snap button, and snap it into place until you hear the sound.
Item Number: SB004.
Size: 0.6 inch (15 mm), 2 pairs
Color/Pattern: Col.31 Flower
Material: Polyacetal
(From Amazon.co.jp)