The WaterRower M1 LoRise is a full commercial model with a lower level entry point (12" / 30.5 cm) than the M1 HiRise (20" / 50.8 cm). The frame is constructed from powder-coated aluminum. Description The WaterRower M Series is comprised of commercial-grade steel rowing machines including the "M1". It has been designed to simulate the smooth, flowing nature of a boat gliding through the water. A truly self-regulating exercise, rowing is ideal for any user, from Olympic athletes to those looking for a fulfilling personal workout; the WaterRower is suitable for any level of fitness. Includes S4 Performance Monitor Features Powdercoated Aluminum S4 Performance Monitor Online Training Owners Manual Syphon Pump Water Purification Tablet Allen Key Specifications Product Dimensions: 88" L x 22.25" W x 20" H (224 x 57 x 51 cm) Stored Dimensions: 20" D x 22.25" W x 88" H (51 x57 x 224 cm) Product Weight: 111 lbs / 50.5 kg (dry) - 148 lbs / 67.5 lbs (17 L of water) Warranty Frame - 5 years Parts - 3 years