1TOTAL QUANTITY: Each pack come with 100 black plastic fingerboard dots, enough to meet your various DIY decorating needs, beautiful and practical 2WEAR RESISTANT PLASTIC: Guitar fingerboard dots are made of excellent plastic after fine processing, wear resistant and smooth, lightweight and portable, safe and environmentally friendly, strong and durable 3SIZE AND DIMENSION: Guitar position markers are 4mm in diameter and 2.2mm in thickness. Can be used to decorate your guitar fingerboard, the black spot is very visible, very beautiful 4HELP YOU IDENTIFY: Fingerboard inlay dots can mark specific numbers, making it easy to quickly find the right place during playing, , provide great convenience for you 5WIDE APPLICATION: Fingerboard inlay blocks are designed for guitar, bass, ukulele, banjo, mandolin and are widely compatible, useful and practical