It’s about 14” long and overlaps about an inch at the seam.
Thank you for your question. We are sorry about the delayed response due to technical difficulties. ROTBLOC 4x4 Post Wrap is roughly 12" high. It is designed to protect the critical rot zone area of the post. The critical rot zone is the layer of soil that has plentiful oxygen, water, organic matter and nutrients which creates an abundance of microbial life. This why all ROTBLOC products are focused on protecting this area of the post. Thank you for your question! Ken
ROTBLOC 4x4 Post Wraps are sold individually or by the case. I can see where the photo may have caused some confusion. Thank you for your question.