Description 
This item is a pack of 4pcs stainless steel furniture legs, which features hard and durable material. With adjustable design, great accessories for DIY furniture, cabinets, shelves.
Note: The color of the item may vary slightly due to photography and your own computer

Features
- Material: stainless steel.
- Color: black+silver
- Height (adjustable): Max. height 6.4cm / 2.5 inch
- Mini. height 5cm / 1.96 inch.
- Diameter: 2 inch / 5cm.
- Accessories for DIY furniture, cabinets, shelves.
- Hard and durable material for long time use.

Package Including 
4x (5CM)Stainless Steel Table Legs with screws
Questions & Answers

Questions:
What is the minimum and maximum height on these?
Answer:
1.96" is the minimum. By unscrewing the "lid", at most you'll gain 1/2 inch making the max 1.9 and 0.5 in

Question:
Do these adjust slightly for leveling out the unit they are used on or do they adjust from one certain height to another?
Answer:
You adjust the height by twisting the bottom of the feet. This allows for "fine tuning." If I recall, I believe the max adjustment is at least a centimeter or more.

Question:
Do these come with screws? If so, how deep are they? Thanks
Answer:
4 screws per foot. There are 0.62" length.

Question:
Can be used for sofa?
Answer:
yes , but there not very heavy duty. Has plastic treads and sleeve. My guess is they would be too light to carry that much load. However, if all four corners are securely mounted and you avoid any lateral pressure (ie. sliding sofa across floor or carpet instead of carrying) you could potentially get away with it for awhile. They would most likely not take any abuse. Hope this helps.