Shockproof. Latex-free. Exclusive pressure-distribution system. Pressure-proof manometer. Ensures durability and reliability. Microfilter. Protects valve and manometer. Large diameter scale. 56 mm diameter black-on-white scale is easy to read. High-quality indicator. Precisely calibrated, durable and shock resistant. Large insufflation bulb. 50 % larger bulb volume for fast inflation of the cuff. Upper housing made of aluminum alloy with a shock absorbing ring protecting indicator and glass. Lower housing is molded of shockproof plastic with shock absorbing, anti-slip coating. High quality, single-tube cuff with velcro fastener. Washable. Adjustable spoon (plastic). For both right or left-handed operation. Innovative push-button valve. Fine and precise air-release rate adjustment, ultra-fast air-release, practically wear-free. Easy to operate by both left and right-handed users.