This is any laser engraver’s dream package. This bundle includes the CW-5200 water chiller, LightBurn software license key (good for two computers), PiBurn V3.0 Rotary Axis Attachment for engraving cylindrical surfaces, XL300 5-Stage Fume Extractor for clean exhaust indoors, and your choice of Gemini Duets colored acrylic sheets (4pc, color selection may be limited).