Metal wood or glass.
													
																	Dog car door shields. 
									
	
		
	
																	The cardinal gates door shield is cheaper easier to install than plexiglas. 
																	Plus canine covers door shields come in 4 universal colors and carry a 90 day warranty. 
																	For larger dogs or jumpers use 2 door shields one on top of the other to increase height. 
																	Starling s car door protector pet dog car door cover protector guard for car doors 3 extra pockets anti scratch waterproof safe for dogs fits any vehicle 3 9 out of 5 stars 797 23 97 23. 
															
													
									
	
		
	
																	Doglemi 2 pcs car door protector for dogs anti scratch dog car door cover waterproof oxford vehicle door guards for cars suv pet travel gray 1 for each side 4 1 out of 5 stars 142 19 99 19. 
																	2 sizes 22 or 26 width to fit in anywhere. 
																	And there s no fuss with clean up because canine covers door shields are machine washable. 
																	Conveniently it adheres to most any door construction. 
															
													
									
	
		
	
																	Each cardinal gates door shield measures 33 x 35.