Features: Made of black carbon fiber material, in balanced composite construction, sturdy and durable. Available in violin sizes 4/4, 3/4, 1/2, 1/4, 1/8; suitable for professional violin making and fixing, high cost performance. Small and lightweight finetuners turn smoothly and easily. Set of a violin tailpiece with four fine tuners and a tailpiece gut cord. 100% brand new and high quality, traditional looks and easy installation. Specifications: Material: carbon fiber, nylon, aluminum alloy Size: for 4-string violin Type: for 4/4 violin / for 3/4 violin / for 1/2 violin / for 1/4 violin / for 1/8 violin (optional) 4/4 Tailpiece Size: 10.9 * 4.2cm / 4.29 * 1.65in 4/4 Tailpiece Weight: 21g / 0.74oz 3/4 Tailpiece Size: 10.4 * 4cm / 4.09 * 1.57in 3/4 Tailpiece Weight: 20g / 0.71oz 1/2 Tailpiece Size: 10.1 * 3.8cm / 3.98 * 1.5in 1/2 Tailpiece Weight: 18g / 0.63oz 1/4 Tailpiece Size: 9 * 3.6cm / 3.54 * 1.42in 1/4 Tailpiece Weight: 13g / 0.46oz 1/8 Tailpiece Size: 8.2 * 3.1cm / 3.23 * 1.22in 1/8 Tailpiece Weight: 11g / 0.39oz Package Size: 1/8, 4/4: 15 * 10 * 2cm / 5.91 * 3.94 * 0.79in others: 14 * 5 * 2cm / 5.51 * 1.97 * 0.79in 4/4 Package Weight: 24g / 0.85oz 3/4 Package Weight: 23g / 0.81oz 1/2 Package Weight: 21g / 0.74oz 1/4 Package Weight: 16g / 0.56oz 1/8 Package Weight: 13g / 0.46oz Package List: 1 * 4-string tailpiece 1 * nylon tailpiece cord