Hellä's bow and arrows

Name: Shan-bao bow
Creator: A friend of Hellä's brother, Shane.
Owner: Hellä Bellerose
Type: Weapon
Appearance: The bow is made of dark hard wood, it lacks decoration except for a part that has white wood and a dragon carved in darkwood. It also has her initials (H.B.) carved beneath the dragon. The rope of the bow is resistant and last around a year. Every year Hellä has to go and change it to not risk it breaking while in use. The length of the bow is 96cm (38 inches).
Use: You pull back the string and the force from it returning to it's natural state propels the arrow forward. To pull the string the most, you need 10% strength. The maximum length the arrow can go is 30 meters (100 feet).  
Special abilities: N/A
History: N/A
Availability: Exclusive
Cost:

Name: Arrows
Creator: A friend of Hellä's brother, Shane.
Owner: Universal
Type: Ammunition
Appearance: Each arrow measures 78 cm (30 inches) and its made out of dark hard wood, the shaft is simple and has no design carved to them. The arrowhead is broadhead shaped, (medieval one, not mechanical one), they have two to four sharp blades that cause massive bleeding in the victim. The fixed-blade broadhead keeps its blades rigid and unmovable on the broadhead at all times.
Use: The arrows are made to penetrate bodies much like a bullet but easier to dodge. Once the arrows go through the body, though, it's very hard to take it out without causing more damage to the body.  The fletchings (the feather-like things in an arrow) are black and red.
Special abilities: N/A
History: N/A
Availability: Universal
Cost:

Bow: 500,000 belli

Arrows: 2,000 belli (per arrow)