All measurements are approximate:

• The 0g spirals measure 51mm in diameter
• The 00g spirals measure 59.5mm in diameter
• The 7/16" spirals measure 61mm in diameter
• The 13mm spirals measure 61mm in diameter
• The 9/16" spirals measure 67mm in diameter
• The 5/8" spirals measure 72mm in diameter
• The 3/4" spirals measure 77.5mm in diameter
• The 7/8" and 15/16" spirals measure 84mm in diameter
• The 26mm spirals measure 84mm in diameter

Bloodwood, also known as Satine, is a sustainable wood harvested in South America.  It gets its name from its vivid red color, although it can darken over time as it is exposed to sunlight or oils.  The grain of bloodwood is usually straight and fine, with a mild chatoyancy.

Dark Raintree, known locally as Mai Pradu, is an easy to work with wood that finishes well.  Related to Amboyna and Narra wood, this wood is dark brown with some minor dark striping.