Plastic hooks that use 3M's Command Adhesive which holds securely but removes easily with Stretch Release Technology.
Damage Free Adhesive Hooks & Strips
3M Command, Medium Designer wall hooks, Upto 1.3kg Heavy duty, Hold Strongly, Reusable Adhesive hooks for wall, Multi-surface damage free hooks for hanging (white , 2 hooks, 4 strips) : .in: Home
Command Large Utility Hooks, White, Damage Free Decorating, 6 Hooks and 12 Command Strips 17003-6ES - The Home Depot
Command Mini Wall Hooks 30 Command Hooks 32 Command Strips Damage Free Clear - Office Depot
3M® Command™ Adhesive Hooks and Hangers
3M Command [Removable]: Large Utility Hook [1 hook/pack] (White)
Command™ X-Large Hooks 17010-2EF, 2 X-Large Hooks 6/Strips
3m Command Damage-free Hanging Hooks Command 3m Brushed Nickel Decorative Metal Hook Command Hook Medium 3packs - Robe Hooks - AliExpress
3M Command Large Adhesive Bathroom Hook Water-Resistant Strips, White, 2-Pack
Command Adhesive Hooks Large 2kg, Pack of 3
Command™ X-Large Hook 17011-EF, 1 X-Large Hook, 4/Strips