Accessories:

Dufferin Surround Stone
Dufferin Angled Stone

Links:

Catalogue:  Permacon's 2015 Masonry Catalogue

Technical:  Permacon's 2015 Masonry Technical Guide

Size Options:

90 mm x 90 mm x variable 

90 mm x 140 mm x variable 

(The above two sizes are packaged together.)

Large: (Sold seperately) 

90 mm x 240 mm x variable 

Surround Stone (Sold seperately) 

115 mm x 190 mm x 140 mm
 

Angled Stone (Sold seperately) 

105 mm x variable x 90 mm