Package Content: This set includes 12 pieces: 8 silver stainless steel finger picks and 4 black ABS plastic thumb picks. The silver finger picks are 0.83 inch long and 0.7 inch in diameter. The black thumb picks are 1.5 inches long and 0.59 inch in diameter. Fits most adult fingers; please confirm your finger size before use. Premium material: The 8 finger picks are made from durable stainless steel, sturdy and lightweight, with no pungent odor and a suitable bending amplitude and firmness to fit your fingers. The 4 thumb picks are made of ABS plastic, comfortable to use and protective for fingers and nails. Flexible design: The finger picks can be bent to adjust the fit. To customize, insert the metal picks into each finger by bending the openings; the metal is soft and maintains its shape after bending. Wide application: These finger picks are ideal for practicing guitar and other instruments, helping to reduce pain and sweat while protecting your fingers. Suitable for electric guitar, acoustic guitar, classical guitar, bass, banjo, and ukulele. Great for daily practice or as a thoughtful gift for family and friends.