Four equilateral triangles are interlinked. Although it doesn't appear so, the triangles are slightly overlapping and will print as a single, fused object. This is one of the "orderly tangles" discovered by Alan Holden. The strut diameter is 2.5 mm. The triangles have an edge length of 2 cm.
Cord or chain for hanging not included. The hole through the middle has a diameter of about 3 mm.