Are they made from a solid piece of steel?

If you are asking if they are hollow, I do not think so. I believe it is 1 piece. I’ve not taken the hand wrap off to check for welding or soldering marks.

No they are not but still dangerous

Does the black paint coating chip off?

The finish is excellent, but any painted steel surface will eventually chip with hard enough impacts. I have a couple of chips from steel on steel impacts that are about 1mm in size barely noticeable.

ASIN	B00UP49GRE
Age range	Adult
Batteries included?	No
Best Sellers Rank	103,704 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 5 in Sais
Blade edge	Flat
Blade length	18 Inches
Blade material	Stainless Steel
Brand	UiiWout rfcxs
Color	Black, Gold
Date First Available	14 Mar. 2015
Features	Heavy Duty
Hand orientation	Ambidextrous
Included components	Metal
Item model number	WJ-M0850-18BK
Manufacturer	PDTXCLS
Package Dimensions	51.05 x 16.64 x 3.4 cm; 1.36 kg
Style	Modern

18 Inch Black Sai with Black and Gold Handle (Set of Two), Martial Arts Sais, Stainless Steel

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