SENATOR SKEYE BIO BALL PEN in various colours. Sustainable Advertising with Bioplastics. Made From Renewable Biobased Raw Materials. Ball Pen for Your Environmentally Conscious Brand Presentation. Matt Finish Twist-action Ball Pen Fitted with Large Capacity Magic Flow Refill. Available in Natural Corn Yellow Orange Tulip Red Pale Green Natural Green Rich Blue Fresh Blue Warm Grey 3 Warm Grey 10 Black. Minimum Quantity: 500.