art
background
barbed
barrier
chain
chained
chainlink
design
detain
dimensional
drawing
element
enclose
enclosure
fence
forbidden
graphic
grid
illustration
jail
keep
link
linkage
mesh
metal
paling
pattern
penal
prison
prisoner
protect
reflection
rhomb
safety
seamless
security
sharp
silhouette
steel
stem
strong
system
texture
tile
urban
wire