This is a new wall spike.

material :hot-dip galvanized steel sheet  or PVC coating

The length is 1.25m/root, 1.15kg/root

Pakage: Carton(0.28*0.11*1.3). 30PCS/carton. A 20' container 20000PCS
Features
   (1)    Virtually impossible to climb over
   (2     )Heavily ribbed for strength                                       
   (3)    Galvanized against corrosion
   (4)    Powdercoating optional
   (5)    Double row of barbed wall spikes
   (6)    Easy to Install,Maintenance free
   (7)    low cost, easy installation, high protective ability, beautiful and not rust
Applications

   (1)   Perimeter Walls
   (2)   Gates + Fences
   (3)   Building roofs
   (4)   Upgrade electric fences by fitting Razor 11 under the fence.
   (5)   Domestic, Industrial, Commercial, Military, Correctional Security
   (6)   wall spike is widely used in the garden, factories, airport, etc security fence protection, to play a        protective role, It can use anchors fixed on the wall, fencing, gates, buildings or metal guardrails

Razor spike 6 is the anti-climb wall spike that we designed for fitting onto narrower surfaces. 
Razor Spike 6 can be used as a stand alone barrier or it can be used to strengthen or upgrade the security rating of wire mesh fences, diamond mesh fences and electric fence installations. Razor Spike 6 anti-climb wall spike is heavily ribbed for strength and consists of two rows of anti climb wall spikes. The spikes stands 6cm high and are barbed.
 
Razor Spike 11 is the most popular and aggressive anti-climb wall spike product in our range. 
The three dimensional design provides greater volume, superior strength and an excellent physical and psychological barrier. Razor Spike 11 is manufactured from 1.6mm steel and is heavily ribbed during the manufacturing process to ensure ultimate strength and sharpness. Razor Spike 11 is 11cm high and consists of two rows of wall spikes. The outer row of wall spikes is barbed and provides a continuous row of spikes angled outwards which will overhang the edge of the structure to which it is attached. The inner wall spike is a thinner stiletto shaped ribbed spike that will penetrate a boot or similar object.