SUNLU Rainbow PLA Filament Bundle 4 Rolls 1.75mm 4x250g Fast Color Change Every 8 Meters Rainbow 01 02 03 04 Neatly Wound Vivid Multicolor Gradient FDM 3D Printer Filament

SUNLU Rainbow PLA Filament Bundle – 4 Rolls, Fast Color Change Every 8 Meters

Experience the most dynamic color-changing filament on the market. The SUNLU Rainbow PLA Filament Bundle includes 4 rolls of 250g rainbow filament (Rainbow 01, 02, 03, and 04), each engineered to change colors rapidly every 8 meters for a vivid, high-frequency rainbow gradient effect. Unlike standard multicolor filaments with slow transitions, SUNLU's fast color change formula delivers intense, eye-catching color shifts that make every layer of your print a visual spectacle. Neatly wound and compatible with most FDM 3D printers, this bundle is the ultimate choice for makers who want maximum color impact.

Why This Rainbow Bundle Is Different

• 🌈 Fast Color Change Every 8 Meters – Rapid color transitions create a dense, vibrant rainbow effect with more color shifts per print compared to standard gradient filaments
• 📦 4 Rolls Included (Rainbow 01–04) – Four distinct rainbow color sequences give you variety and creative flexibility across multiple projects
• ⚖️ 1kg Total (4 x 250g) – Generous amount across 4 rolls for extended rainbow printing sessions and multi-part projects
• 🧵 Neatly Wound Spools – Carefully wound to prevent tangles and ensure smooth, uninterrupted feeding during long print sessions
• 🖨️ Wide FDM Compatibility – Works with Creality Ender 3, Ender 5, Bambu Lab, Prusa, Anycubic, and most 1.75mm FDM printers
• 🎨 No Special Hardware Needed – Any standard single-extruder FDM printer produces the rainbow effect automatically as the filament feeds
• 🌡️ Easy Print Settings – Nozzle temp 190–220°C, bed temp 0–60°C, no heated bed required

Specifications

Frequently Asked Questions

Q: What does "fast color change every 8 meters" mean?
A: It means the filament completes a full color cycle (through all rainbow colors) every 8 meters of filament. This creates a much denser, more frequent color-shift pattern compared to standard rainbow filaments that change every 20–50 meters, resulting in more vivid, dynamic prints.

Q: What is the difference between Rainbow 01, 02, 03, and 04?
A: Each roll features a different rainbow color sequence or starting color combination, giving you four distinct rainbow patterns to choose from. This allows you to create varied multicolor effects across different projects or mix rolls for unique results.

Q: Do I need a special printer to get the rainbow effect?
A: No! The rainbow color effect is built directly into the filament. Any standard single-extruder FDM printer that accepts 1.75mm filament will produce the rainbow gradient automatically as the filament feeds through the nozzle.

Q: Is this bundle a good gift for a 3D printing hobbyist?
A: Absolutely! A 4-roll rainbow bundle from SUNLU is one of the most exciting gifts for any maker or 3D printing enthusiast. The fast color change effect produces stunning, conversation-starting prints that stand out from standard single-color filament.

Q: What printers is this SUNLU rainbow filament compatible with?
A: This filament works with virtually all FDM 3D printers, including Creality Ender 3, Ender 5, Bambu Lab X1/P1, Prusa i3 MK3/MK4, Anycubic Kobra, and any other printer that uses 1.75mm filament.

Q: Is this filament suitable for STEM education or school 3D printing labs?
A: Yes! The fast color change rainbow effect is especially engaging for students and makes STEM projects visually exciting. PLA is the safest filament for educational use, and the 4-roll bundle provides enough material for multiple classroom projects.

Fast US Shipping

Ships from our US warehouse. Enjoy free delivery in 2–7 business days — no customs delays, no long waits. Order today and start printing in vivid rainbow color.