KR41 Slow-rise spring – Premium decelerator spring mechanism in slim 23mm / 32mm barrel with plastic brackets. Features: White plastic brackets with 23, 32 or 36mm aluminium barrel housing a premium quality spring with decelerator mechanism. The rigid white plastic bottom bar is fabric covered at front and has a central cord-pull. Benefits: The KR41 operates on the slow-rise principle where, once the blind is released from its ratchet-stop, it will glide slowly and smoothly up to its fully open position and come to rest without that familiar crash! Options: Handle in place of central cord-pull; Bottom bar fully fabric cov-ered; Alternative bottom bars including fabric covered aluminium and Tear Drop white, black or silver aluminium