These plastic caps are designed for dispensing liquids and creams from bottles or tubes. There are various options for the type of closure. Here are a few of the most common:
- Disc top lids open by pressing on one side of the lid to lift and open the other side.
- Snap tops open by pushing up the hinged lid to reveal the hole.
- Twist tops open like school glue, with a hole that's unplugged after twisting.