Sturdy to use: These finger picks are made of stainless steel, durable with no pungent smell, and feature an appropriate bending amplitude and tightness to fit your fingers comfortably. The guitar thumb picks are made of celluloid material, providing a comfortable feel and protection for your fingers and fingernails. Thoughtful design: The open design allows you to feel the strings for enhanced control. These picks make a great gift for guitar or bass players, or for personal use. Please allow some time to adjust to them when first used; practice will improve comfort and performance. About size: You may need to slightly bend the metal picks to fit each finger, as the material is stiff enough to retain its shape. Please check the size carefully—this size fits most adult fingers, but confirm your finger size before ordering. Designed for practice: These guitar picks help protect fingers from discomfort and sweat, enhance sound quality, and contribute to a fuller, more realistic tone. A practical accessory for guitar practice and performance improvement. Widely applicable: Suitable for playing electric guitar, acoustic guitar, classical guitar, bass, banjo, and other stringed instruments. Helps improve sound quality, enhance bass response, and add clarity to your playing. Color: Silver & Blue-Black Material: Stainless steel + Celluloid Package Contents: 8 x Index finger picks, 4 x Thumb picks Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.