It depends what shield-
Bella's shield on protects those under her shield from mind power eg. Edwards gift to read minds, Aro's mind reading gift, Alec's gift to immobilize physical and emotional self.
Where as Renetra (Aro's personal bodyguard) can deflect and physical contact.
They had a big shield to protect their whole body!
Virus shields protect your computer from the viruses.
Face shields are designed to protect you from fumes.
Shields (Greek Hoplon or Roman Scutum) are used primarily to protect the body and can be used , in a phalanx , to push the enemy back to upset their forward momentum .
to protect it
that knights protect themselves
The purpose of the shield was twofold. First it was a protective device, preventing javelins, arrows or sword thrusts from hitting the man. Secondly, it could be used as an offensive weapon by pushing the opponent off balance.
often used by indians, blanket and copper shields were something used to protect themselves
The main benefits of nipple shields are to protect the nipples of a breastfeeding mother. It has been said that nipple shields in general should be used as a short term solution.
Brooke Shields was under age. a body doulble was used.
A poncho is garment, usually a flat cloth, used to protect against rain and the elements. The poncho will have a single opening for the head, while the rest of it drapes across, and shields the body.
Viking shield are one of a kind & they could be much lighter than medieval shields .... from 4 pounds to 7 pounds. Typical Medieval shields were kind of heavier ... ranging from 6 to 11 pounds. Here we are talking of shields used in combat on foot. [Heater - Shields around 30'x18' and Round-Shields around 26' ] ----------------- ....Because shields used by knights to break through were much bigger but useless in a Face-to-Face fight... they ranged from 10 to 15 pounds They were meant to protect from arrows and to cover the whole body while approaching the enemy-lines. [ Big Kite-shields]