These are battery cases, sockets, miniature light bulbs, switches, etc. used in science experiments. Operation confirmed. 5 battery cases 4 miniature light bulbs and sockets 1 base (or something similar) 1 switch These items have been stored for a long time. They are used and pre-owned. Some items are bent or discolored. No pets, no smokers. No comments needed, immediate purchase and transactions without comments are OK. Will be packaged with bubble wrap and shipped via anonymous delivery.