Package includes 15 x wire connectors (yellow) 50 x wire connectors (blue) 60 x wire connectors (red) 25 x wire connectors (white) Features - Material: Plastic - Color: Assorted colors - Waterproof rating: IP67 - Size: 3.80X0.50X0.50cm/1.49X0.20X0.20in (red) - Size: 4.00X0.60X0.60cm/1.57X0.24X0.24in (blue) - Size: 2.60X0.30X0.30cm/1.02X0.12X0.12in (white) - Size: 4.00X0.80X0.80cm/1.57X0.31X0.31in (yellow) - AWG: 16-14 (blue); 26-24 (white); 22-18 (red); 12-10 (yellow) Product Information The 150 pcs heat shrink butt connectors offer a practical solution for secure and waterproof electrical connections within the category of Other Terminal Blocks. Made from durable plastic with an IP67 waterproof rating, these connectors feature a solder seal design that enhances conductivity and reduces contact resistance. This mechanism stably supports current flow and reliable signal transmission, especially in demanding environments such as automotive, marine, and industrial wiring. The assorted sizes and colors correspond to wire gauges from 0.25 to 6 mm², catering to various wiring needs while fitting neatly into compact spaces where traditional soldering might be challenging. These connectors simplify installation by eliminating crimping, saving valuable time for electricians and hobbyists. Beyond functionality, their design ensures long-lasting durability against aging and exposure to harsh elements, reducing maintenance frequency for outdoor and truck electrical systems. Heat shrink solder connectors elevate wiring projects by combining efficiency, protection, and performance, making them a reliable choice for electrical engineering tasks that demand secure and durable wire terminals.