Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
From "Neox Graphite x Haikyu!", it is 『 Doctor Grip CL ・ Sharp replaceable core 0.5 mm (with core cover) 』.
[Product Details]
Size : Doctor Grip approx. 14 cm, Replaceable Core 8 x 2 cm
Accessories : Sharp Core Cover
Replaceable Core quantity : 40 pieces