Specifications: By pushing out the ink specifically for pressurized ballpoint pen, you can always write securely. Writes upward, and does not leave marks on fast writing, and is always an outstanding writing experience. SN-200PT-07 Product Size: Shaft Diameter 0.5 x Thickness 0.6 x Total Length 5.7 inches (12.4 x 16.6 x 144.0 mm); Product Weight: 0.4 oz (13.0 g); Package Size: W 3.0 x D 5.7 mm; Mechanism: Knock-type, Refill: SNP-7; [Painters Dot Com Postcard Our shop is limited!! 1 x Cute Animal Postcard