Products Heat Resistant 932°F Silicone Soldering Work Mat (S-130) Wwzmdib Silicone Soldering Mat (11.8 x 7.9”, 1 lb). 932°F resistant, non-slip, magnetic. Safe workspace for electronics. 1-year warranty. Shop Now 2 Pcs L298N Motor Driver Controller Board DC Dual H Bridge Wwzmdib L298N Motor Drivers (2 pcs, 0.5 lbs). Dual H-bridge, for DC/stepper motors. Arduino/RPi compatible. 1-year warranty. Shop Now 2 Pcs HC-SR04 Ultrasonic Sensor Module Wwzmdib HC-SR04 Ultrasonic Sensors (2 pcs, 0.2 lbs). Distance measurement 2cm–400cm. For Arduino/RPi robotics. 1-year warranty. Shop Now