25pcs 12x12x7.3 mm Tact Tactile Push Button Switch, 4 Pin Momentary SMD PCB Micro Switch with Cap for Arduino, AE1027 5 Colors Round Cap Assortment Kit DIY Project

WOWOONE 25pcs 12x12x7.3 mm Tact Tactile Push Button Switch, 4 Pin Momentary SMD PCB Micro Switch with Cap for Arduino, AE1027 5 Colors Round Cap Assortment Kit DIY Project

ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

VWEICYY 9V Battery Connector,10 PCS T-Type 9 Volt Buckle Connector Hard Plastic Shell Used in Student Experiment,or Other Equipment with Battery(T-Type, 10PCS)