Replacement Set of Retractable Arms for ALEKO’s 12 x 10, 13 x 10, 16 x 10, and 20 x 10 Foot Black Retractable Awnings For 12 x 10 and 13 x 10 Foot Awnings you will need two arms total: (1) Right Arm + (1) Left Arm; This set includes bothFor 12 x 10 and 13 x 10 Foot Awnings you will need two arms total: (1) Right Arm + (1) Left Arm; This set includes both For 16 x 10 Foot Awnings you will need (1) Right Arm + (2) Left Arms For 20 x 10 Foot Awnings you will need (2) Right Arms + (1) Left ArmFor 20 x 10 Foot Awnings you will need (2) Right Arms + (1) Left Arm Aluminum alloy arms are weather resistant and durable Compatible with ALEKO's Black Retractable Awnings User Friendly design is easy to Install; Instruction Manual included Folded Product Dimensions (LxWxH): 61.4 x 2.3 x 2.2 Inches each Product Weight: 8.2 lbs each Includes: (1) Left Side Retractable Awning Arm and (1) Right Side Retractable Awning Arm This product is a replacement set of retractable arms that is compatible with ALEKO’s 12 x 10, 13 x 10, 16 x 10, and 20 x 10 Foot Black Retractable Awnings. For these Awnings, you will need two arms total: (1) Right Arm + (1) Left Arm. This set includes both. Easy to install with instruction manual included.