Image 1 of 3 Image 2 of 3 Image 3 of 3 90° Pneumantic front block $75.00 90° Angled Pneumatic Front Block. Compatible with the SM-KAOS & Karnis. Raw and ready for anodizing! Add To Cart Added! 90° Angled Pneumatic Front Block. Compatible with the SM-KAOS & Karnis. Raw and ready for anodizing!