Specifications: Slider tube: the tone is soft, full, bright, crisp and long lasting. Fingertip picks: can increase the brightness and grainy of the pitch, while increasing the playing speed, effectively reduce the soreness of the fingers, and protect the fingers more efficiently. Comes with a plastic storage box, easy to carry. Type: Guitar Slider Tube Picks Set Material: Stainless Steel + Glass + Celluloid Applicable Instruments: Guitar, Bass, Banjo, Ukulele, etc Features: Durable, Guitar Accessories, Finger Protector Slider Tube Length: 7cm/2.76", 6cm/2.36", 5cm/1.97", Outer Diameter: 2.5cm/0.98", Inner Diameter: 2.1cm/0.83" (Approx.) Box Size: 14.5cm x 8.5cm x 3.5cm/5.71" x 3.35" x 1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Stainless Steel Slider Tube 3 x Glass Slider Tube 4 x Celluloid Picks 1 x Plastic Box