60x60x10mm Slimline 12V DC Fan - Oil Bearing

30x30x10mm, 5VDC cooling fan

Note: NODEMCU V3 WiFi module integration of ESP8266 + extra 32Mb  Flash, USB serial, CH340G - Type 1 / CP2102 - Type 2. 

40 x 40 x 20 mm, 12V Brushless DC cooling fan - Oil...

60x60x10mm, 24V Brushless DC cooling fan

Heat bed insulation foam for 3D printers. Stick on backing for easy installation. Can be easily cut to size with scissors.

Stepper Motor 28BYJ-48 (5V or 12V) with Reduction Gearbox