takes the principle of the syringe instead of the traditional techniques of manual removal and fills the void with mud. Features: Quality product; superior. New durable material, with strong strength, thick curved round nozzle. High efficiency to save time and material. Fully filled, prevents water leakage, adapts to normal mortar, & agrave; resin & oacute; poxy, etc. Easy & agrave; to use, & agrave; remove and & agrave; clean. Quality product; superior. Materials: ABS, stainless steel. Color: yellow and black. Suitable for: normal joint sealant, resin & poxy. Content: 1 pistol & agrave; joints for mortar. 4 nozzles.