The word 'wrapper' is often used to talk about packaging material that is removed before using an item. He tossed the phone's wrapper in the bin after unboxing.
Pro Tip 2/3
Littering Context
Mentioning a 'wrapper' on the ground implies waste or littering. Keep environment clean by disposing properly. Don't throw the wrapper on the street; use the trash can.
Pro Tip 3/3
Product Freshness
'Wrapper' indicates that a product is new or untouched. Wrappers keep items clean and safe. The candy's wrapper ensures it stays fresh.