USB Numeric Keypad, Portable Slim Mini Number Pad for Laptop Desktop Computer PC, Full Size 19 Key, Big Print Letters, for Windows 7/8/9/10/for iOS/for Android sold2025 Features: - Round Diameter: 1

Features: - Round Diameter: 1 inch - Length: 4 feet - Shrink Ratio: 3:1 - Color: Black - Material: Polyolefin - Temperature Range:-131℉ to + 257℉ - Minimum Shrinkage Temp: 158℉ - Full Shrinkage Temp: 230℉ maximum - Flammability: Flame Retardant How to use it

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Each Graftonite mouthpiece is made from durable polycarbonate material and is pitched at A=440

What are the functions of the two extra wires on two ends

USB Numeric Keypad, Portable Slim Mini Number Pad for Laptop Desktop Computer PC, Full Size 19 Key, Big Print Letters, for Windows 7/8/9/10/for iOS/for Android sold2025 Features: - Round Diameter: 1USB Numeric Keypad, Portable Slim Mini Number Pad for Laptop Desktop Computer PC, Full Size 19 Key, Big Print Letters, for Windows 7 8 9 10 for iOS for Android Description Specifications: Suitbale: for All Kinds of Laptops, Desktop Computers, etc. Condition: 100% Brand New Interface Type: USB Keys Number: 19 Material: ABS Color: Black Size: Approx. 12. 9 8. 9 1. 1cm 5. 1 3. 5 0. 4in Cable Length: Approx. 130cm 4. 3ft Weight: 88g Package List: 1 x