Granite legs

The RuneScape Wiki also has an article on: rsw:Granite legs

Granite legs
Released							12 December 2005 (Update)
Members							Yes
Quest item							No
Properties
Tradeable							Yes
Equipable							Yes
Stackable							No
Noteable							Yes
Options							Wear
Destroy							Drop
Examine							These look pretty heavy.
Values
Value							66,000 coins
High alch							39,600 coins
Low alch							26,400 coins
Weight							15.875 kg
Grand Exchange
Exchange							39,116 coins (info)
Buy limit							70
Daily volume							672
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Advanced data
Item ID							6809

Granite legs are platelegs which require 50 defence and 50 strength to be worn. They can only be obtained by killing Skeletal Wyverns.

Compared to dragon platelegs, they have a greater ranged defence bonus at the cost of worse melee defences.

Attack bonuses
+0		+0		+0		-31		-18
Defence bonuses
+43		+45		+41		-4		+68
Other bonuses								Slot
+0		+0		+0%		+0		List

Item sources

For an exhaustive list of all known sources for this item, see here (include RDT).

Source	Level	Quantity	Rarity
Skeletal Wyvern	140	1	1/512