?Luminous spare parts can increase the visibility of aircraft in the dark night£¬ making your favorite helicopter easier to identify. That¡¯s why we highly recommend you this 3pcs Luminous Main Blades + 1pc Luminous Tail Blade Helicopter Spare Part Kit for V931 &amp; K123! High quality blades are specifically designed to produce a high lifting power£¬ offering an enhanced overall efficiency so as to conserve battery power. Made of high-grade materials£¬ they are all tough and durable for long-lasting use. Add it into your cart now!                                    Features             Increase the visibility of aircraft in the dark night<br> Make your favorite helicopter easier to identify<br> Specifically designed to produce a high lifting power<br> Offer an enhanced overall efficiency so as to conserve battery power<br> Made of high-grade materials£¬ tough and durable<br> Easy to install   <br>                                                            Specifications             Color     White    <br> Suitable for     V931 K123    <br> Dimensions     (1.57 x 0.79 x 0.20)" / (4 x 2 x 0.5)cm (L x W x H)    <br> Weight     0.18oz / 5g       <br>                                                             Package Includes            3 x Main Blades<br>1 x Tail Blade<br>