Air Spencer CS-X3 Air Freshener Refill Cartridge, 4-Pack Bundle (4 Different Scents) Authentic EIKOSHA Air Spencer CS-X3 Refills; Made in Japan 4 different scents enclosed: Squash, Lime, Crystal, and Citrus Refill cartridge for CS-X3 air freshener Lasts up to 4 weeks, but depends on air flow Try all 4 scents with economic value!