Pololu 1072 - T1 (3mm) Yellow LED with Yellow Diffused Lens

GSM/GPRS + GPS module based on the RDA8955 chip. It integrates protocol stacks such as GSM/GPRS and supports the basic functions of voice calls, SMS and GPS data transmission. DFRobot TEL0134

3-Axis Digital Compass

Development board with SAMD21 microcontroller (ARM Cortex® M0+), 8 I/O lines, 12 PWM channels, micro-USB. The board is equipped with the ATSAMD21 module and SARA-U201 U-blox enabling the implementation of communication in GSM networks. Arduino MKR GSM 1400 ABX00018

AVT kit for self-assembly of a simple LED clock with a blue display. AVT3132 B

HK Turnigy TrackStar 10.5T Sensored Brushless Motor 3250KV (23361)

Permanent cylindrical neodymium magnet with a diameter of 18 mm and a height of 2 mm.

Module for measuring position changes in space using a built-in sensor with 9 degrees of freedom, equipped with an LSM9DS0 system with a 3-axis accelerometer, a 3-axis gyroscope and a 3-axis magnetometer. MOD 65

What is it about marble runs that makes them so compelling? Kids (and adults!) can watch marbles going down a track, passing through various obstacles, for hours on end.  Marble runs are fascinating, they grab our attention, and yet they\'re also relaxing. Marble runs and races have become an unexpected YouTube phenomenon, with thousands of videos racking up millions of views. You choose a marble to watch, to cheer for, you wonder which path it will take, you put yourself in the marble\'s place, imagining that you are right there with the glass ball, going on a marvelous, unknown journey, with twists and turns and surprises around every corner. UGears 70156

SOFTSTART FOR POWER TOOLS - A KIT FOR INDEPENDENT INSTALLATION