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But if the house is esasy and people cook and eat at floor level, it may be best to leave the wheelchair outside. For people who do not have strong arms, you may use pulley blocks razer wireless driver 2 or more pulleys. For example a pair of pulley blocks with 3 pulleys in each will increase the force by 6. These pulleys have sheaves with deep V-grooves with diameters of 50 mm.