Package Content: This set includes 12pcs finger picks, including 8pcs silver stainless steel finger picks and 4pcs black plastic thumb picks. The silver one is 0.83 inch long and 0.7 inch in diameter. The black one is 1.5 inch long and 0.59 inch in diameter. This size fits most adult fingers, but please confirm your fingers size before . Premium material: The 8 finger picks are mainly made of durable stainless steel, sturdy and lightweight, no pungent odor, appropriate bending amplitude and firmness can fit your fingers well; 4 guitar thumb picks are made of ABS plastic material, comfortable to use, which can be a nice protection for your fingers and nails. Flexible design: The finger picks allow you to adjust the bending range to better fit your fingers, just need to insert the metal picks into each finger by bending the openings, the metal is quite soft, which is good for keeping its shape. Wide application: These finger picks are an ideal helper for practicing guitar/other instruments and prevent pain and sweat, which can be a nice protection for your fingers. It can be used for a variety of instruments, such as electric guitar, acoustic guitar, classical guitar, bass, banjo, ukulele. Not only can you use them for your daily practice, but also can be a gift for your family and friends. Backed by 1-Year or replacement warranty.