Solid brass slide provides treble and more stable bass for longer stretches and full tone. 304 stainless steel guitar slide offers great resonance, good intonation, and a clear bright sound. Borosilicate glass guitar slide is heat treated and annealed for smooth performance, making it smooth, sturdy, and durable. It accentuates the middle harmonics of your sound and delivers warm, silky bluesy tones, suitable for slide guitar, acoustic guitar, and bass. Material: Celluloid + Stainless Steel + Glass Color: Photo Color Package Contents: 1 x Brass slide 1 x Steel slide 1 x Glass slide 6 x Guitar picks 3 x Finger picks 1 x Thumb pick Only the above package content is included; other products are not. Note: Lighting and different displays may cause slight color differences between the item in the picture and the actual product. Measurement allows an error of +/- 1-3 cm.