This is a 25 Pack of 4.7K Ω Resistors. More specifically, they are carbon film, through-hole axial type, with 1/4 Watt max dissipation, 300V max voltage, 5% precision resistors. Whew! These are super common and great for use in any kit, breadboard, perf-board, or other project.
We got ones with 0.4mm thick wires so they plug in nicely into solder-less breadboards.