Used a few times for practice during nursing student days. It's in excellent condition. Works without any problems. No instruction manual. ※ I try my best to respond quickly and carefully, but I may take some time to reply or ship items because I work during the day. Thank you for your understanding. Pressure Measurement Range 20-300mmHg, Graduation 2mmHg Size When Stored: Approximately 334 (length) x 96 (width) x 65 (height) mm When in Use: Approximately 334 (length) x 96 (width) x 338 (height) mm Weight Approximately 680g (including batteries, excluding cuff and inflation bulb) Power Supply 3 AA alkaline batteries * Approximately 6,000 measurements possible with AA alkaline batteries Complies with JIS T 1115 Equipment Classification/Class Classification ・General Medical Equipment / Class I Product Number / JAN Code Washable Cuff Specification 0380B101 / 4560105682410 Cotton Cuff Specification 0380B111 / 4560105682427 Manufacturing and Sales Notification Number 11B2X0002138010