https://www.bigoexpress.com/product/amlits-300-pcs-insulated-wire-electrical-connectors-butt-ring-spade-quick-disconnect-crimp-terminals-connectors-assortment-kit/
Amlits 300 PCS Insulated Wire Electrical Connectors - Butt, Ring, Spade, Quick Disconnect - Crimp Terminals Connectors Assortment Kit