Spray adhesive. 77 is about 80% full. 55 is new. 20 is about 40% full. I'm okay with selling them individually, so please comment. Individual prices: 77: ¥1222 55: ¥1444 20: Around ¥500. You can also suggest a price! 3M spray adhesive set of 3, different models for different uses. - Brand: 3M - Model: Cleaner 20 - Model: Spray Adhesive 77 - Model: Spray Adhesive 55 Thank you for looking.