Description: Without any complicated tools or adjustments, you can simultaneously apply joint compound and tape to flat joints, inside corners, and square components in minutes, eliminating time-consuming and troublesome adjustments. You can freely switch between different modes and adjust the sewing machine's working mode according to your needs. It is more of a fixed, rigid body position, giving you a more comfortable experience. Features: Made of durable ABS polycarbonate Two adjustable soft grip handles for right or left-handed use User-friendly mixing flow adjustment knob Unique clamp design for quick loading and cleaning Fits sewing tape rolls up to 150 m / 500 feet Designed for use with FibaFuse paper or paperless fiber tapes Instructions ● Crack repair: First, clean the cracks in the drywall, fill them with sealant, and then use a tool to apply the joint tape in the middle of the crack. ● Conventional construction: Clean the joints in the drywall, fill them with sealant, and then use a tool to apply the joint tape in the middle of the crack. Apply white glue over the sealant, and then use a tool to apply the joint tape in the middle of the joint. ●Application: Suitable for 47 x 94 inch drywall joints to prevent cracks in the joints between two drywall sheets.