All the products are made from metal stuff, Which have GS/CE approvals with big blade & strong frame, they have many advantages such as small, lighter, powerful, wearable, rustproof, longevity and so on. Besides, the color, brand, front grill and back grill are up to yours. We can do as your requirements. Model: APK15-3 Spec(mm): 150(6") Power(W): 25 Speed(r/min): 1800 Air Delivery(M3/min): 4. 5 Model: APK20-4 Spec(mm): 200(8") Power(W): 30 Speed(r/min): 1300 Air Delivery(M3/min): 7. 38 Model: APK25-5 Spec(mm): 250(10") Power(W): 40 Speed(r/min): 1300 Air Delivery(M3/min): 11. 4 Model: APK30-6 Spec(mm): 300(12") Power(W): 55 Speed(r/min): 1300 Air Delivery(M3/min): 16. 4 Model: APK35-7 Spec(mm): 350(14") Power(W): 70 Speed(r/min): 1300 Air Delivery(M3/min): 22. 5