Precision fit for each spine of Micro LT. The post is 32 grains the sleeve is 53 grains for a total of 85 grains. Screw the sleeve onto the post and glue them in together. Creating a very strong shoulder breaking arrow. Available for our 250, 300 and 350 spined LTs. Both the post and sleeve are made of high grade Aluminum.  (Pack of 6)