The Chair above is assembled using the Mod-eez® Fastening System. The back spreader has been mortised with open-ended pockets and uses Mod-eez® #5033 Non-Locking Double Clips that are surface mounted. The front spreader has been mortised through and uses Mod-eez® #5033 Non-Locking Double Clips that are surface mounted. The chair back uses Mod-eez® Anti-Rotational #5075 Non-Locking Male Clips mounted to the side edges of the chair back and #5076 Non-Locking Female Clips placed in mortised pockets in upper portion of the legs where they meet with the back. Click on the above link “Chair Assembly Video” to view the movie that demonstrates the use of the Mod-eez® Fastening System for this particular application.