Specifications:
-Fit all the major types of hanging chairs including swings, hammocks, hanging chairs, punching bag, etc.
-Can install on a concrete ceiling and wooden beam;
-Snap swivels allows 360 degree rotation without any tangling or twisting
-Dimensions: 2.80'' x 1.57'' x 3.82'', two holes distance: 1.90'', expansion bolts diameter: 0.47'', height: 3.35''
(1/2" drill size for the concrete is recommended)

Operation Guide:
1. Draw the hold location with a pencil
2. Drill 4 holes with 8mm drill bit
3. Use 12mm drill bit to clear holes
4. Insert the expansion screw arbor without any damage during inserting
5. Install the celing hook and tighten the screws with screwdriver
6. Suitable fox hanging swings, chairs and purching bag
7. Pls use use 1/2" drill size for the concrete.

Attention: In order to use safety, pls check thread rod and nut are welded together.

Package Includes:

2 x swing hangers
4 x expansion bolt
4 x screws
2 x swing snap hooks