This keyboard do not hurt the eyes, clearly visible, not easy to press wrong. It's suitable for old men. Features: 1.38m/4.53ft long wired USB connection,fast and convenient installation. Plug and Play. Comfortable typing, youll enjoy a comfortable and quiet typing experience with this keyboard. Suitbale for old men. Do not hurt the eyes, clearly visible, not easy to press wrong. Yellow key with black letters, perfect for people visually impaired. Help to protect eyesight, easy to understand. English large print keyboard provides superior comfort without forcing you to relearn how to type. Specifications: Item type: Keyboard Material: ABS Line length: 1.38m/4.53ft Number of keys: 104 (keys) Interface: USB Package size: 450*170*30mm/17.729*6.69*1.18in Package Weight: 490g/1.08lb Packing list: 1*Keyboard